Project Euler problem zero (source code)

= Project Euler problem zero
{c}

This was a registration <CAPTCHA> problem as of 2025:
> Among the first 510 thousand square numbers, what is the sum of all the odd squares?
<Python> solution:
``
s = 0
for i in range(1, 510001, 2):
    s += i*i
print(s)
``